Optical interaction of space and wavelength in high-resolution digital imagers

Brian Rodricks; Kartik Venkataraman; Peter Catrysse; Brian Wandell

doi:10.1117/12.650729

10 February 2006 Optical interaction of space and wavelength in high-resolution digital imagers

Brian Rodricks, Kartik Venkataraman, Peter Catrysse, Brian Wandell

Proceedings Volume 6069, Digital Photography II; 606904 (2006) https://doi.org/10.1117/12.650729
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

Abstract

Precise simulation of digital camera architectures requires an accurate description of how the radiance image is transformed by optics and sampled by the image sensor array. Both for diffraction-limited imaging and for all practical lenses, the width of the optical-point-spread function differs at each wavelength. These differences are relatively small compared to coarse pixel sizes (6μm-8μm). But as pixel size decreases, to say 1.5μm-3μm, wavelength-dependent point-spread functions have a significant impact on the sensor response. We provide a theoretical treatment of how the interaction of spatial and wavelength properties influences the response of high-resolution color imagers. We then describe a model of these factors and an experimental evaluation of the model's computational accuracy.

Citation Download Citation

Brian Rodricks, Kartik Venkataraman, Peter Catrysse, and Brian Wandell "Optical interaction of space and wavelength in high-resolution digital imagers", Proc. SPIE 6069, Digital Photography II, 606904 (10 February 2006); https://doi.org/10.1117/12.650729

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